Historically, Portland has had a long-standing association with high-tech industries. According to City-Data.com, more than 1,200 tech companies currently operate in Portland, and, in 2004, microcomputer components manufacturer Intel was the city’s largest employer. The city has also seen consistent growth in the education and health-services sectors, helping the area maintain its high growth ratings despite significant decreases in employment in the natural resources, mining and construction sectors.
Bonus fun fact: Portland has the largest independent book store in the world.